They're all male leads who sleep around, don't submit to anyone, and won't string you along. Harem stories are fine too, maybe even preferred. Just dive in and see for yourself.
The first author's previous book had some controversial, brainless plot points. Some readers thought it was cuckoldry, so this book feels like the author took that criticism to heart and avoided a lot of dumb plotlines.
As for the second author, all I can say is that they avoided every issue people brought up about the first book. They actually listen to readers.
The third book is pretty good. For a while, I even wondered if it was The Strongest Uncle Returns to the Literary World.
The fourth book's original setting and female leads held it back. If they'd changed it to a martial arts crossover, it would have taken off, though it probably would have been censored anyway.
That's all I'll say about the others.